package src.dual_pointers;

import java.util.Scanner;

/**
 * @author starsea
 * @date 2024-09-01 20:35
 */

public class Test13 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int m = in.nextInt();
        int q = in.nextInt();
        int[][] arr = new int[n + 1][m + 1];
        long[][] dp = new long[n + 1][m + 1];
        for (int i = 1; i <= n; i++) {

            for (int j = 1; j <= m; j++) {
                arr[i][j] = in.nextInt();
                dp[i][j] = dp[i - 1][j] + dp[i][j - 1] + arr[i][j] - dp[i - 1][j - 1];
            }
        }
        for(int i=0;i<q;i++)
        {
            int x1=in.nextInt();
            int y1=in.nextInt();
            int x2=in.nextInt();
            int y2=in.nextInt();
            System.out.println(dp[x2][y2]-dp[x1-1][y2]-dp[x2][y1-1]+dp[x1-1][y1-1]);
        }
    }
}
